CIPN (Chemotherapy Induced Peripheral Neuropathy)

Peripheral neuropathy is caused by chemotherapy medications damaging peripheral nerve damage


CIPN_Photo.jpg

Signs & Symptoms:

  • Pain
    • Patients may report shooting or stabbing pain but pain may also come and go.
    • Patients may report numbness or they may report a lessened ability to sense pressure, touch, or heat.
  • Burning feeling in extremities like hands and feet
  • Tingling feeling
  • Loss of feeling in extremities
  • Trouble using your fingers to pick up or hold things
  • Balance problems
  • Pressure or temperature may hurt more than usual
  • Muscle weakness
  • Trouble swallowing
  • Constipation
  • Trouble passing urine
  • Blood pressure changes
  • Decreased or no reflexes

PN_Pain.jpg

Diagnostic Tests

  • Neuro exam
  • CT Scan
  • MRI
  • Nerve Biopsy
    • Very rarely performed, can cause nerve damage
  • NCV
    • Nerve conduction velocity test, measure speed of nerve impulse
    • Measure degree of damage in nerve fibers
    • Determines cause of nerve damage: demylinazation (slow transmission of nerve impulse) or axon damage (decreased impulse strength)
  • EMG (Electromyography)
    • Inserting needle into muscle to measure electric activity while muscle is active and when it is at rest.
    • Helps differentiate between muscle and nerve disorders

Medications That Can Cause CINP:

  • Platinum drugs like cisplatin, carboplatin, and oxaliplatin
  • Taxanes including paclitaxel (Taxol) and docetaxel (Taxotere)
  • Epothilones such as ixabepilone (Ixempra)
  • Plant alkaloids such as vinblastine, vincristine, vinorelbine, and etoposide (VP-16)
  • Thalidomide (Thalomid) and lenalidomide (Revlimid)
  • Bortezomib (Velcade)

Nursing Interventions:

  • Teach patients the importance of medication compliance.
  • Teach patient to avoid extreme temperatures.
  • Teach patient to avoid shoes that are too tight.
  • Teach patient to avoid alcohol, it may make CIPN worse.
  • Teach diabetic patients the importance of controlling their diabetes & importance of controlling their blood sugar.
  • Teach patients to use knives, scissors, box cutters, and other sharp objects gently and carefully.
  • Teach patients to protect their hands by wearing gloves when they are cleaning, work outdoors, or do repairs.
  • Teach patients to how to care for their feet.
    • Instruct them to look at their feet once a day to see if you have any injuries or open sores. Instruct them to always wear shoes that cover your whole foot when walking, even at home.
  • Teach patients to be sure that they have ways to support themselves if they have problems with balance.
  • Teach patient how to use a walker or cane for extra support.
  • Teach patient to advocate for themselves!
    • Teach patient to report signs & symptoms and concerns to health care provided.

Medications for CIPN:

  • Neurotin (Gabapentin): used to decrease numbness and tingling from nerve damage
  • Steroids: used only for a short term treatment
  • Patches or creams of numbing medicine: applied directly on source of pain
  • Anti-depressant medicines: used to treat depression
  • Anti-convulsant medicines: used as an off label treatment for nerve pain
  • Opioids or narcotics: used for when pain is severe

Treatment Options:

  • Electrical nerve stimulation
  • Occupational, physical, or relaxation therapy
  • Massage
  • Guided imagery
  • Distraction
  • Acupuncture
  • Biofeedback

-Excellent Nursing Article on Nursing Interventions for CIPN
http://ons.metapress.com/content/38054849w7731327/

-Great Pain Control Resource for Patients
http://www.cancer.org/Treatment/TreatmentsandSideEffects/PhysicalSideEffects/Pain/PainDiary/pain-control-toc

Sources & References:
  1. http://www.cancer.org/Treatment/TreatmentsandSideEffects/PhysicalSideEffects/ChemotherapyEffects/PeripheralNeuropathy/peripheral-neuropathy-caused-by-chemotherapy-toc
  2. http://www.chemocare.com/managing/numbness__tingling.asp
  3. http://www.cancercare.org/publications/24-understanding_and_managing_chemotherapy_side_effects?gclid=CPbBr9KR3a0CFSwBQAods0w8kw#possible-side-effects
  4. http://www.cancer.gov/aboutnci/ncicancerbulletin/archive/2010/022310/page6